Which group is the best leaving group in a SN2 reaction? (The species below are after the leaving group has left the original alkyl compound.) CH2
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- Ql- Arrange the following carbonium ion as more stable. Why? Me Me „Me A C Q2- Choose the substituted group that makes the following reaction faster. Why? X- CH2 H X- ососн, OR COOCH} Y= NH2 OR NO2 Q3- Which of the following compounds give the highest yield when reacting with a carbonyl compound. Why? NH 2 NH2 NH2 Me Me Me OR OR NO 2 NO2 NO2Give the major substitution product of the following reaction. a O CH3CO₂H Br heat CH₂ ? O There is no reaction under these conditions or the correct product is not listed here.O In this step alkyne anion is alting and it is attacking cecting acting as 4 electrophile a Pla وعك Ho as a nucleophile on the genen molecule, which is Br pom 산 2-Bromo propane (26105 576 honros он 2
- Draw the favored product(s) of the following reactions (organic chemistry)These are all electron-withdrawing groups that slow electrophilic aromatic substitution, with one exception. Which one? © CO,H O NO₂ O CF3 O NH2Which SN1 reaction is each pair is faster? А. CH,OH CH;OH B. Br CH CHOН eBr OMSO Br CH,CH OH CH,CH,OH
- Which compound is most nucleophilic? * О Option 5 О снзSH CH3SH О снзон О снзсо2н CH3CO2H О 120 Н20why isntt the product e2 since we have strong nucleophil and polar protiction solvent Br 10. Θ Θ Na HOCH 3 N3 ง SN2 NaBr1. Intramolecular SN2 reactions can occur if the product is a stable (5-, 6-, or 7-membered) ring.Draw a reasonable mechanism for this reaction. HO NaH THF
- Draw the starting structure that would lead to the major produc shown under the provided conditions. Drawing 1. Hg(OAc)2, H₂O 2. NaBH4, NaOH OHWhich of the following statements about nucleophilic reactions are generally true ? V SN2 reactions rely on least hindered substrates. 1° are best while 3° are worst. V SN1 and E1 reactions rely on good carbocation forming substrates. Benzylic, allylic, 3° are best while 1° are worst. V E2 reactions depend primarily on strong bases like hydroxides, alkoxides, or amides. V Polar aprotic solvents like HMPA, DMF, DMSO, acetonitrile, or acetone are favoring SN2. V Polar protic, neutral or acidic solvents/environments like alcohols, water, or acidic solutions favor SN1/E1 mechanisms. SN2 and E2 reactions are stereospecific, while SN1 occurs with racemization. Elimination reactions are expected to result in Zaitsev's (more substituted) product(s), unless hinderance steers them into Hoffman's (less substituted) product(s).Draw the major E2 reaction product formed when cis-1-chloro-2-ethylcyclohexane (shown below) reacts with hydroxide ion in DMSO CH3 Н CH2 н Но Н Н. H CI DMSO н Н Н